Left-hand launcher, big circle at the top; items going half-way down – all Unity tropes. And, on the screen further back to the center (in the image above) we can see what looks like Ubuntu’s 4-space Workspace Switcher.

But is is actually Unity?

Between the few fleeting glimpse of the screens as a whole screen, which are often softly out of focus, there are one or two close-ups that shows that this isn’t – sadly – Unity being used: